HOMEVULNERABILITIESCVE-2023-22616
HIGH

CVE-2023-22616

CWE-610Published: April 12, 2023· Updated: Jun 17, 2026

7.8
CVSS v3.1

Official Description

An issue was discovered in Insyde InsydeH2O with kernel 5.2 through 5.5. The Save State register is not checked before use. The IhisiSmm driver does not check the value of a save state register before use. Due to insufficient input validation, an attacker can corrupt SMRAM.

NVD Source

Technical Analysis

CVE-2023-22616 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 7.8.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

insyde1 product(s)
insydeh2o
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttps://research.nccgroup.com/2023/04/11/stepping-insyde-system-management-mode/
ADVISORYhttps://www.insyde.com/security-pledge
ADVISORYhttps://www.insyde.com/security-pledge/SA-2023022
ADVISORYhttps://research.nccgroup.com/2023/04/11/stepping-insyde-system-management-mode/
ADVISORYhttps://www.insyde.com/security-pledge
ADVISORYhttps://www.insyde.com/security-pledge/SA-2023022

All References (6)

→
https://research.nccgroup.com/2023/04/11/stepping-insyde-system-management-mode/Exploit · Third Party Advisory
→
https://www.insyde.com/security-pledgeVendor Advisory
→
https://www.insyde.com/security-pledge/SA-2023022Vendor Advisory
→
https://research.nccgroup.com/2023/04/11/stepping-insyde-system-management-mode/Exploit · Third Party Advisory
→
https://www.insyde.com/security-pledgeVendor Advisory
→
https://www.insyde.com/security-pledge/SA-2023022Vendor Advisory

Quick Facts

CVE IDCVE-2023-22616
CVSS Score7.8 / 10
SeverityHIGH
WeaknessCWE-610
CISA KEVNo
Affected1 vendor(s)
PublishedApr 12, 2023

Related CVEs (CWE-610)

CVE-2017-16088
10.0
CVE-2019-7290
10.0
CVE-2022-39206
9.9
CVE-2025-10091
9.8
CVE-2025-7823
9.8
CVE-2025-7824
9.8

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2023-22616 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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